﻿// code05050100.cpp : 跳转语句
// break语句

#include <iostream>
using namespace std;

int main()
{
    string buf;
    while (cin>>buf&&!buf.empty())
    {
	    switch (buf[0])
	    {
		case '_':
			for (auto it=buf.begin();it!=buf.end();++it)
			{
				if (*it=='')
				{
					break;				//离开for循环
				}
			}							//结束for循环
			break;						//case-break,离开switch
		case '+':
			//....
			break;						//case-break,离开switch
	    }								//结束switch		
    }									//结束while语句

	return 0;
}

